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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: DiskChris on March 01, 2013, 11:58:10 PM
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I've got an octagon 2000 card which doesn't seem to recognize hard drives any more. It all started a few months ago when I was working in my amiga, and I broke the scsi cable. Only one of the plastic brackets broke off, so I attempted to use the cable anyway and got a scsi phase error. No problem I thought, so I ordered another scsi cable off the internet. Now, when I try to boot with my hard drive plugged in, the computer just hangs, while hd light stays on. I can hear the drive spin up. And I know the problem is with the controller because I was able to read the drive fine with my pc (even used the same cable). UAE was able to boot right off the image I made. And to be doubly sure, I tried booting off of a second hard drive with the same result...
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Check SCSI pin 26 for +5V (termpower) - possibly a short having killed the fuse or a trace. You can also try supplying termpower from the drive (if possible).
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Actually, it turned out to be a jumper setting on the board...It was jumpered as having 8 MB of ram installed, when in reality it had none. Interesting that it worked to begin with, because I don't remember changing anything. Oh well...